Childbirth System: Become the Goddess of Mercy who grants children to the male protagonist!

A kind soul had just returned from an all-night work session at an internet cafe, lay down, and was transported to another world… The first second he opened his eyes, a completely unfamiliar environment, a completely unfamiliar world; the second second, a child-rearing system appeared; the third second, the system had bound him to the wrong person! Xu Xian helplessly looked up at the sky, trying to stop the tears from sliding down his cheeks… Wasn't this the start of a good life?! He'd been hiding in the mortal world for so long, changing his identity one guise after another, maybe even the heavens couldn't bear to see him suffer anymore, and specially delivered this cheat code to his doorstep. Xu Xian hurriedly pleaded, “System, can our genders be… can't we be less rigid?!” “What's wrong with being a man? Can't men use the child-rearing system?!” “Of course…”